<span>You should deflect the
ball in order to maximize your speed on the skateboard.
Since this creates a larger impulse, you want to deflect the ball. Splitting it
up into catching and throwing the ball may by something you can think of deflecting
the ball. First, you need to catch the ball, which in turn would push you
forward with some speed. (The speed we are talking about should obviously be
equal to option A, where you catch the ball). Now, throw the ball back to him
since these two processes are equal to deflecting the ball. Throwing a mass away
from you would cause or enable you to move even fast.</span>
Answer: demesne lands
Explanation:
" (demesne lands) which were for the personal use of the lord of the manor."
Answer:
q = 1.04×10^-9C
Explanation:
The force on a charge orbiting at the center of the sphere (Fc) is must be equal to the electrostatic force acting on the charge.(Fq)
Fc = Fq
The force that causes a body to bev attracted towards the center of the sphere is the centripetal force.
Centripetal force (Fc) = ma = mv²/r where m is the mass of the body
v is the speed
r is the velocity
The electrostatic force acting on the body is derived according to the Coulomb's law of electrostatic attraction.
Fq = kqe/r²
Where k is the constant
e is the electron orbiting outside the sphere
r is the distance between the charge and the electron
Since fc=fq,
mv²/r = kqe/r²
Making the charge the subject of the formula we have;
mv²r = kqe
q = mv²r/ke
Given the mass of the charge =
8.84×10^-12kg
v = 3.0×10^5
r = 1.0cm = 0.01m
k = 1/4Π£o = 1/4Π×1.67×10^-27
k = 4.77×10^-27
e = 1.6×10^-19C
Substituting the values in the formula given,
q = 8.84×10^-12×(3.0×10^5)²(0.01)/(4.77×10^-27)×1.6×10^-19
q = 1.04×10^-9C
The sphere's charge is 1.04×10^-9
Answer:
In following ways
Explanation:
firstly speed defination= the total distance travelled by a body in a unit time is called speed . its formula =total distance travelled by a body in a straight line / total time taken.
it is sector quantity.
velocity defination= the total distance travlled by a body per unit time in a straight line is called velocity. It is vector quantity . Its formula = total distance travlled by a body/ Time taken
Answer:
<h2>100,000 J</h2>
Explanation:
The kinetic energy of an object can be found by using the formula
m is the mass
v is the velocity
From the question we have
We have the final answer as
<h3>100,000 J</h3>
Hope this helps you